Tooth-brush.



D. WEISS,

TOOTH BRUSH.

APPLICATION FILED APR. 29. 1912.

Patented May 6, 1913.

1 ,ocdocz.

- UNITED STATES rATENT OFFICE.

DAVID WEISS, OF CLEVELAND, OHIO.

TOOTH-BRUSE.

Specification of Letters Patent.

Patented Ma 6, 1913.

Application filed April 29, 1912. Serial No. 693,809.

f1 0 all whom it may concern:

Be it known that I, DAVID lVEIss, a citizen of the United States of America, residing at. Cleveland, in the county of CuyahOga and State of Ohio. have invented certain new and' useful Improvements in Tooth- Bruslics: and I hereby declare the following' have their. ln'istle-carrying stocks arrangedforward of the forward end of the handle of the brush and normally side by side and have their tufts of bristles projecting in the same direction in the normal position of said sections and may be swung laterally 7 and outwardly to render the brush capable of being inclosed in a shallow pocket-case.

()ne object of this invention is to inclose within the handle-of the brush the mecha nism whereby said brushing-sections may be swung laterally and outwardly and thereby protect saidmechanism against injury 'and exclude dust anddirtfrom said mechanism.

Another object is to Jack, said mechanism in the normal position of said brushing-sections, and to have the locking means employcd in locking said mechanism contained within the handle of the brush] so as to protect said locking means against injury.

Another object is to render the mechanism employed to swing said brushing sect-ions laterally and outwardly and the means for locking said mechanism in the norn'lal posi tion of said lnushing'sections simple in construction. reliable in their operation,

4 and not liable to get out of order.

Another object is to have said locking means only rendered accessible by the separation of sections instrumental in forming the handle of the brush.

l/Vith these objects in view, and. to the end of attaining any other advantages hereinafter appearing, this invention consists in certain features of construction, and combinations and arrangement of parts, hereinafter described, pointed out in the claims, and illustrateddn the accompanying drawings.

'case "G Fig. 4 is a transverse'section on line 44,-

Fig. 1. Fig. 5 is a transverse section on line 55, Fig 3. Fig. 6 is a transverse section on line 6--6, Fig. 3. Fig. 7 is a side view of an opened pocket-case in which the forward end-section of the handle and of m im connected brushing sections and the intermediate handle-section and rear'end-section of the handle are compact-1y arranged. Figs. 8 and 9 are transverse sections on line 8.8 and line.9-9 respectively, Fig. 7 except that in Figs. 8 and 9 the pocket-case is shown closed. The tooth-brush is shown full size in Figs. "1, 2, 7, 8, and 9, whereas Figs. 3, 4, 5, and 6 are drawn on an enlarged sea e.

Referring to said drawings, A indicates the forward end-section of the sectional handle of my improved tooth-brush; B, the intermediate section of, the handle, and C, the rear end-section of the handle. The

handle-sections A, B and C are arranged in line endwise. The rear end-section C of the handle is provided atits forward end 'with a tubular coupling-member 10 embracing and thereby connected to the rear endportion of but removable from the inter mediate handle-section B torender said rear end-section removable from said in termediate section preparatory .to placing said rear end-section in a pocketshown in Figs. '7, 8 and 9. The intermediate handle-section B is provided at its forward end with a tubular coupling-member 11 embracing'andA-thereby connected to-the rear end-portion of but removable from the forward end-section A of the handle 'to render said intermediate section removable from the said forward end-section preparatory to placing said intermediate section in the pocket-case G shown in Figs. 7, 8 and 9, and I would here remark that-said case is provided centrally with a guide gv for said forward handle-section. The forward end-section A of the handle is shown composed of a hollow shell which is provided at the rear end of said handle-section with a head 12 provided centrally with a hole 13 which is in registry with a cavity 14 formed in and centrally of the forward end-portion of the body of the intermediate handle-section B. Said forward end-section of the handle is therefore provided interiorly with a chamber 16 which extends longitudinally of' said handle-section. Said forward end-section of the handle is provided at its forward end with a head 17.

The brush-proper of my improved toothbrush comprises two tooth-brushing sections D and E. Each brushing section comprises a stock 18 and tufts 19 of bristles. It will be observed therefore that said brushing sections are normally parallel and correspondingly arranged side by side. The stocks 18 are arranged at the forward end of and inv lin'e endwise with the forward end-section A of the handle and side by side and flush at their faces when the brushing sections D and E are in position ready for use, as shown in Figs. 1 and 2, and the tufts 19 of said stocks project from said faces in the same direction in said position ofsaid brushing sections, as'shown in Fig. 2. The stock 18 of the brushing section D is provided with a shaft 20. The stock 18 of the brushing section E is provided with a shaft 21. The shaft of each stock 18 extends from said stock into and longitudinally of the chamber 16 in the forward end-section of the handle and extends through and has bearing in the forward head 17 of said handlesection and extends into proximity to the rear head 12 of said handle-section. The shafts 20 and 21 are parallel and spaced laterally, and two gears 22 and arranged within the chamber 16 are mounted on the shafts 20 and 21 respectively at the inner side of the head 17. The gear on each shaft is soldered or otherwise attachedto said shaft.

Preferably the stocks is have their ad- .jacent sides abutting against each other,

shown in Fig. 2,whcn the brushing sections are in position side by side and ready for use, and sald stocks are rounded croon- .t-oured, as at 24, at their backs and at said sides, as shown in Fig. 2, as required to render said brushing sections capable in said position of being'swung laterally and'outwardly into the position shown in Figs. 3, 5 and 6. The gears 22 and 23 mesh with each other and establish operative cobn ection between the shafts 20 and- 21, and obviously the brushing sections '1) and, E are swung laterally and outwardly and independently of the handle during their rotation in the direction indicated bythe arrows a; in Fig. 4.

As shown in Figs. 4 and 5, the gen r 225' has three teeth and the gear 22 two teeth, and the non-toothed )ortion of each gear is as large diainetrical y as the toothed portion of said gear and has such dimensions circuinferentially of the axis of said gear that the gears rotate exactly one-fourth of a rotation in either direction. "It; will be observed therefore that the shafts 20 and 21 have their operation limited to one-fourth of a rotation in either direction, and that said shafts rotate when operated simultaneously but in opposite directions'respectively. It will be observed also that during the rotation of the shafts in the direction indicated by the arrows-m in Fig. 41- the brushing sections 1) and E are swung laterally and outwardly from the position shown in Figs. 1, 2 and 4: into the position shown in Figs. 3, 5, and 6, and said sections are actuated into the position shown in Figs. 3, 5 and 6 preparatory to placing the forward end-section of the handle and connected brushing sections, upon detaching the intermediate handle-section from said forward end-section, into the pocket-case G shown in Figs 7, 8 and 9, and it will be observed that the brushing sections, when they have been swung into the position shown in Figs. 3, 5, and 6, have their backs arranged directly opposite and abutting against each other, as shown in Fig. 8, and the tufts of bristles of each brushing section are arranged at a right angle to the arrangement of said tufts of bristles in the position of said brushing section shown in Figs. 1, 2 and l. By the' construction hereinbefore described it will be observed that the stocks 18 are relatively arranged and contoured to limit the swing ing of the brushing-sections from and toward each other.

\Vithin the chamber 16 but in proximity to the head 12 and spaced from the gears and 23 is arranged 'a slide L which (see Figs. 3 and 6) is slidably mounted on and shiitable cndwise of the shafts 20 and 21. Said slide is therefore movable endwise of the forward outer handle-sect ion A. Said slide is provided with. a stem Z which extends looscly through the hole 13 in said hcadand into the cavity 14 in the intermediate li=1mllc-scction I), and said stein pro vided Within said cavity with a link or locking member H which is pivoted at one end, as at h, to 'the outer end of said stem and in its operative position, shown in Fig. 1, is

arranged lougit'iulimllly of but. diagonally relative to said stem and projects from said end of said stern toward said hcadan'd presses soi'iwwhat against lhc olltrr side of said head and thereby positively locks the slide against movement. toward the brushing-sectious l) and l l when said brushing sections are in position side by side and ready for use; shown in Figs. 1. 2 and4. The cavity 14 (see hig. 1) has a'wall 15 arlot-hing nie'mber H and by swinging said locking member away from the head 12 so as-to unlock the slide and thereby permit nun'enuint of the slide toward the brushing sections said steurmay be manipulated to -aetuatelhe slide toward said brushingsections.- The slide L is provided with a slot 2 arranged spirally ot' the shaft 21 and extending from within the forward end poll ion of the slideat apointcentrally between the-shafts '20 and '21 to the rear extremity of the slide, andwthe shaft 21 is prorided with a tongue or projecting member 26' which engages said slot and is arranged correspondingly spirally of said shaft. During thc shifting offithe slide-endwise in one direction the shaft through the medium of, its projecting member 26 and one of the side walls of the-slot 25 is 1'0- tated in one direction, and during the actuation of the slide endwise inthe opposite direction said shaft through the medium of saidQprojccting member and the opposite side wall of .said slot is rotatedin. the oppo site direction, and the relative arrangement of the parts is such tliat, movement otthe slide'tmvard the brushing sections D and E" results in the rotation of the shafts in the direction, indicated by the arrows-w in- Fig. 4 so as to swing said brushing sectionsfrom their normal and, operative position shown imFigs. l, 2. and 4 laterally and outwardly into a position in which they lie in the same plane as shown in Figs. 3, 5, and 6, and thereby lQll(l0l.,$2ll(l sections capable of being inelosed in the shallowtcase G shown in Figs. 7, 8, and f). I would here remarkthateach stock 18 is preferably provided at its forward 'end with a circular lug 27 .which surrounds and isconcenlric relative to the shaft of said storlrand has bearing in the head 17 of the forward end-section A of the handle. The lugs :27 of the stocks 18 cover and thereby conceal the shafts 20 and 21 at the l tHWilltl,t'lHlOf the forward end-section A of the handle,

3y the construction hereinbefore described. it will be observed that the mechanismienlployed in operating the shafts 20 and 21 of the. ln'ushing-sections and comprising the gears 22 and 23, the projecting member 20 ot the'shaft Ql and the slide L,

are inclosed within the forward handle-section A so as to exclude dirt and dust froi S:lll Illt 'lltlnlSlTl and protect said mechanism against injmiy;

It will also he observed that the locking member H is inclosed within the handle where his protected against injury, and

that said. locking member is only'aceessible upon removing the intermediate handle-seetlon from the. -forward handle-section.

It will also beobserved that my improved I mechanism for operating the brushing sections and, the means employed for-locking said mechanism in the normal position of the said brushingseetions are exceedin ly simple and durable-in construction, relialile in their operation-and notliable to get out of order.

What I claim is:

:1. In a tooth-brush.the combination, with a handle, and two suitably supported brushlocking said mechanism against swinging the brushing sections laterally and outwardly into their last-mentioned position, said locking means-being adapted to be rem dered inoperatiye preparatory to swinging said brushing sectons into said last-mentioned position. i I

2. In a tooth-brush, the eombinatiomwith a handle, and'two suitably, supported brushing-sectionsarranged at-.,the-f,orward end of the handle adapted to be-swung laterally said brushing sections being' in position side by side when ready/for use and;adapted to be lockedxinsaid position but free when unlocked to be swung laterally and'outwardly into a position had: to back, and mechanism for swinging said brushing sec.- tionslaterally, of means for positively looking said mechanism against swinging the brushing sections laterally: and out-wardly into their last-mentioned position, said locking means being arranged within the handle and adapted to be rendered inoperative prepa ratory to swinging saidbrushing-sections into said last-mentioned position.

. 3. In a tooth-brush, the combination, with a handle having an interior chamber extendinglongitudinally of said handle, find two suitably supported brushing sections arranged at the. forward end of said handle, said brushing sections being in position'side by side when ready for use and adapted in said position to be swung laterally and outwardly, of a slide arranged within the. aforesaid chamber and movable endwise of the handle, and means whereby said brushing'sections are swung-laterally and outwardly during the movement of the slide endwise of the handle in the required direction.

4. In a tooth-brush, the combination, with 25 wardly durmgthe movement of the slide said handle a and adapted the required direction, of

a handle two suitably supported brushing tion; two suitably supported brushing secposition sic tions'arran 'ed at the forward end of said Y within and movable to be swung laterally handlesection'. saidbrushing sections being in position side by side when ready for use and adapted in said josh-ion to be swung laterally andon'twardly; a slide arranged endwise of the aforesaid chamber, means whereby the said brushing sections-are swuiig'laterally :uid'outtoward said sections, and means for locking said slide against I movement toward said brushingsections 1 (LJILIL tooth-brush, the taimbination, with a handle-section; two suitably supported brushbig-sections arranged at: the forward endof said handle-section, said brushing sec tions being in position side by side-when ready for use andr'adapted in said position and outwardly; and mechanism whereby lsaid' brushing: sections and outwardly, which mechanism is arranged within the handle. of means-for hmkingr' said mechanism against. swinging said brushing sections laterally and outwardly, said locking means being arranged externallybf the aforesaid handlesection. i e v 7. in a tootli-bi'iislu the eoii'i'biiiation, with a handle-sectionhaving an interior chamber extending longitudinally oiisaid handle-seetion; two suitably supported-ln'iisliing-s0ctions-arrauged :itthe forward end of said handle-sect.ion, said brushing seetions being in position side by side when ready. for use and :idaptt-d insaidposition to be swung laterally and outwardly; aslide arranged within vthe aforesaid chamber and movable endii'ise of said hani lli sert-ioi ,"and means whereby said IHIIHllill," sections are swung laterally and outwardly -durin; the movement of the slide eiidwise of said handlesection in the required direction. of a locking member arranged externally of said handlesection and connected to the. slide. which locking lll(.lilllt '.l"lll its locking position locks said slideagainstmovement in tlient'oresaii'l direction and is movable into an inoperative position.

i S. In a tooth-brush, a handle-section having an interior chamber extending longitudinally of said liaiidlesec- .tion;' two suitably supported brushing secthe combination, with whereby said brushing sections are swung laterally and outwardly during the movement of the slide endwise of said handle-section in the required direction, of'another handle-section i'eniovably attached'to the first-mentioned handle-section at the rear 'end of said fil'SUlllGlllilOliQd handle-section,

said second-mentioned handle-sectionbeing provided in its forward end-portion with '0. ea rity, and a locking member arranged \'vithin said cavity and connected to the slide,

which locking member in 'its locking position loeks the sl idc a ga-inst movementin the aforesaid direction, and is movable into an inoperative position upon detaching the sec mid-mentioned handle-section from the firstmentioned handle-section.

9. Tu a tooth-brush, a handle-section having an interior chamber extending longitudinally of said section; two

suitablysupported brushing sections ar-' ranged at the forward end of said handlesection and said ln'i shing sections being in position side by side when ready for use and adapted iii-said position to be swung laterally a nd'outwa rd ly; and movable endwise of the aforesaid chamber. and means whereby said brushing sections are swung laterally and outwardly duriiig the movement of'the slide, toward said brushing sections, of another handle-' sect ion removabl attarlied to the first-mere tioned liaiulle-section at the rear end of said first-mentioned haiidlesect-ion, said secondinentioned handlesection being provided in its forward eiid poi'tloii with a cavity, and a locking ineinber arranged within said cavit.

and adapted to and connected to the slide lock the slide against movement toward the brushing sections, said locking member being accessible upon detaching the second-ment'ioiird liai'idle-sertioii from the first-inuntioned luiiulle- :-'ecli iil it). in twill-brush, a handle comprising two Fml-sett'ioiifi and an intermediate section arrangral in line endwise and detaclinlily ronnta-ted together the vi" tll't litiiiiile extending l'in'igitudinally of said endtiectio'n, and the interinmliate hand'le-seotio'nbeing provided in its forward end-portion with a rarity; two suitably suppirtedhriishingsections arranged at the for ard eiid-ofsaid forward end-section f the handlefsa'id the combination, with a slide arranged within forward end-section having an .interior chamber 10 movement of the slide endwise of in the required direction.

ibrushing sections being in .position side by sideiwhen ready for use and adapted in said -lpsition to be swung laterally and; 0utwardly; a slide arranged within the aforesaid chamber and movable end wisefof the handle, which slide provided with a stem e,extending into the aforesaid cavity, and

means whereby said brushing'sections are swung laterally and outwardly during the the handle 11. In'a tooth-brush, a handle comprising two end-sections and an intermediate section arranged in line endwise and dctachably 15- connected' together, the forward end-section v of the handle having an interior chainben. extending longitudinally of said end-sec-.v

t-ion; two suitably supported brushing sections arranged att-he forward end of said head, said shell having an interior chan'iber which extends longitudinally of said handlesection; twosuitably supported brushing sections arranged atthe forward end of said in position side by side when ready for use and vadapted in said position to be swung laterally and outwardly; aslide arranged within the aforesaid chamber and movable provided with'a stem extending through the aforesaid head beyond the outer side of said head, and means whereby the brushing sections are swung laterally and outwardly said sections, of a locking member arranged externally of said handle-section and connected to the aforesaid stem, wluch locking during the movement of .the slide toward 80.

forward end-section of the handle, said brushing sections being in position side by sidewhen ready for use audadapted in said position to be swung laterally and outsaid chamber and'iiiorable endwise of the handle; means \\"hei-eb said brushing secmeinber abuts in its locking position againstthe outer side of the aforesaid head and is 85 movable to render it inoperative.

.14. In antooth-brush, the combination. with -a handle-section comprising a shell which is provided at its rearend with a head. said 'shellhaving an interior chamber 90 50 position to be swung tions areswjunglaterally and outwardly during the 'n'iovenientof the slide endwise' of the handle in the required direction, anda locking. member connectedto the slide,

which locking member in its locking posi tion locks the slide'against; movement in the aforesaid direction, and is movable into an -'1n0p erat1ve position upon detaching the intermediate handle-section from. the forward end-section of the handle.

12. In alooth-brush. a handle comprising two end-sections and an intermediate section arranged in line endwise and detarhabiy 40 connected togetbeix the forward end-sect ion of the handle having an interior chamberextending longitudinally of said end-section, and the intermediate bandlcsection being provided in its forward end-portion with a 15 cavity; two suitably supported brushing sections arranged at the forward end of id forward endseetion of the handle. said brushing section being in posi ion side by side when read): for use and adapted in said laterally and outwardly; a slide arranged within and movable endwise of the aforesaid chamber; means wli'ereby said brushing sections are swung laterally and outwardly during the movement ol the slide toward said l)l'HSl)l!l" 2' sections. and a locking member connected to the slide and adapted to lock the slide against movement toward the brushing sections, said locking member being accessible upon detaching the intermediate handle-section from the forward end-section of the handle.

13. In a tooth-brush, the combination, with a, handle-section comprising a shell which extends longitudinally of said handle: section; two suitably supported brushing sections arranged at the forwardend of said handle-section. said brushing-sections being laterally and outwardb'; a slide arranged said. handle-section. which slide end wise of ill i'ifi'ii-esiflTd-liead beyond the outer side of said head, and means whereby the brushingsoctions are swung laterally andoutwardly during the movement of the slide toward externally of said handle-section and p'iv ,otcd at one end to the'outer end of the aforesaid stein, said locking member in its operative. position abutting .at its other. end

15. In a tooth-brush. the combination, with a handle,,and two ln'usliing-sections arranged at the forward end of said handle and adapted to be swung laterallyand probandle, the shafts of said brushing sections being spaced laterally and'baving bearing in the handle, each shaft being operatively provided with a gear, and the gears of the inclosed within the handle of means for preventing actuation of said shafts in the direction required to swing the brushingseetions laterally and outwardly into a positions are in position side by side and ready for use, said means being-adapted to be rendered inoperative preparatory to the operain position side by side when ready for use and adapted in Stlltl position to be swung within the aforesaid chamber and inoyable i is providedwitli astem extending through,'100

said sections, of 'alocking member arranged against the outer side of the aforesaid head.

vided each with a shaft-extending into said shafts meshing'with each other and being tion back toback when said brushing section of the shafts in the direction required to swing the brushing sections into their chamber, the shafts of said l fir'st-mentioned position.

1.6. In a toothbrush, the combination, with a handle, and two brushing sections arrangedat the forward end of and in line ei dwise with said handle and provided each w th a 'shaftextending into the aforesaid brushing-sections be ng spaced laterally and having bearing in the'handle,

tion. a

17. Ina tooth-brush, the combination,

with a handle-section havlng an interior chamber, extending longitudinally of said her, the shafts o handle; two brushing. sections arranged at the forwardend of and in'line endwise with said handle-section and provided each with ashaftextendin into the aforesaid chamsaid brushing-sections bemg spaced laterally and having bearing in sald handle-section, and two gears arranged "Within the aforesaid chamber tively mounted on the different shafts respectively and meshing with each other, of

ran

a'slidearranged within the chamber and movable endwise of said handle-section,

which slide ,is. s'lidably' mounted on and shiftable endwise of both shafts, said slide having-such an operative connection with one's'haft that said shaft rotated in the one direction or the other according as the slide is moved endwisein the oneor the other direction.

18. In a tooth-brush, the combination, with a handle, and two brushing sections ared adjacentone end and externally of the andlc, 'eachlbrushing section comprising a shaft extei'igling into said handle, the shafts of the bru hing section being spaced laterally and having bearing in the handle, of two gears arranged withint e handle and operatively mounted on the di erent shafts respectively, each gear having atoothed por tion and a non-toothed portion, the toothed p rtion of the gears meshing with each other,

and the non-toothed portion of each gear exarranged at the tending such a distance circumferentially of the axis of thegear that the operation of the gears is limited to a fraction of la rotat'ion in either direction, the relative arrang'ement of the parts being such'that they rushing-sections are arranged side by side, or have been siv'ung laterally and outwardly, according as the gears have rotated the maximum extent in the one or the other direction.

19. In a tooth-brush, the, combination, with a handle, and two br'shin -.sections forward end of said handle beswung laterally, for ,preventin swinging of said. sections latera ily and outward tion back to back when said and adapted to rushing se'o tions are in position side by side and ready; said means being mclosed within 7 for. use, I I the handle and adapted to be rendered'ino erative preparator brushing sections into their first-mentioned posit-ion.

20. In a toothbrush, the combination, with a handle, and two brush arranged adjacent one endand externally of the handle, each brushing section com,- prising a shaft extending into said handle, the shafts 'of the brushing ctions' being spaced laterally and having fiaring in the' handle, of two gears arranged with the handle and o eratively mounted on the differe".t sha ts respectively, each earnhaving a tmithed portion and a non-tooth with; each other, and the non-toothed portionofv each gear extending such a distance" circu'mferentlally of the axis of the gear that 'the operation of the gears is limited to one-fourthof a rotation in either direction, the relative arrangement of the parts being such that the brushing sections have their stocks normally arranged side by side, or have been swung into a position substantially at-a right angle to their normal po-. sition, according as the ears have rotated the maximum extent in t e one orthe other direction. ,5

I n testimony whereof, I sign the foregoing specification, in the presence of two witnesses.

DAVID. WEISS.

Witnesses:

B. 0. BROWN, N. L. MoDoNNnLL.

of means, brushmgy into a pos 1-v t0 the actuation'of t e113 ing sections ed portion," v the oothed portions of the'gears meshing 

